NAME

       PerlIO::mmap - Memory mapped IO

SYNOPSIS

        open my $fh, '<:mmap', $filename;

DESCRIPTION

       This layer does "read" and "write" operations by mmap()ing the file if possible, but falls back to the
       default behavior if not.

IMPLEMENTATION NOTE

       "PerlIO::mmap" only exists to use XSLoader to load C code that provides support for using memory mapped
       IO. One does not need to explicitly "use PerlIO::mmap;".

perl v5.40.1                                       2025-07-03                                PerlIO::mmap(3perl)